random_dummy_gender_soldier_effect

random_dummy_gender_soldier_effect = {
	save_temporary_scope_as = root_character
	hidden_effect = {
		random_list = {
			1 = {
				trigger = {
					dummy_female = {
			 			can_be_combatant_based_on_gender_trigger = {
			 				ARMY_OWNER = scope:root_character
			 			}
				 	}
				}
				dummy_female = { save_scope_as = $SCOPE_NAME$ }
			}
			1 = {
				trigger = {
					dummy_male = {
			 			can_be_combatant_based_on_gender_trigger = {
			 				ARMY_OWNER = scope:root_character
			 			}
				 	}
				}
				dummy_male = { save_scope_as = $SCOPE_NAME$ }
			}
		}
	}
}

As written in game/common/scripted_effects/00_dummy_gender_effects.txt.